# Atmel EDBG-based Tools Protocols
SPI programming protocol commands

### SPI Program Fuse

Programs fuses using SPI programming

Table 156. SPI Program Fuse command format

Field | Size | Description
--- | --- | ---
SPI_CMD_PROGRAM_FUSE | 1 byte | Command ID
cmd1 | 1 byte | Command Byte # 1 to be transmitted
cmd2 | 1 byte | Command Byte # 2 to be transmitted
cmd3 | 1 byte | Command Byte # 3 to be transmitted
cmd4 | 1 byte | Command Byte # 4 to be transmitted

Response:

Table 157. SPI Program Fuse response

Field | Size | Description
--- | --- | ---
SPI_CMD_PROGRAM_FUSE | 1 byte | Command ID
Status | 1 byte | SPI_STATUS_CMD_OK or SPI_STATUS_RDY_BSY_TOUT

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